Unverified85% confidenceDecision RuleTime unknown
甲钴胺（Methylcobalamin）和腺苷钴胺是B12的活性辅酶形式，无需肝脏转化即可利用，更适合MTHFR基因突变者或肝功能受损人群；而氰钴胺（Cyanocobalamin）稳定性和生物利用度已被大量研究验证，普通人群性价比更高
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